Thank you a lot for the fast answer.
About "terminate_monitor will not stop it triggering when you reload the game" issue, the idea of using traits/buildings to save information before reloads is great, and this reminds me a related question:
Do you know if someone has checked the "GameReloaded" event. Has somebody been able to use this event succesfully?
I was thinking if it could be used to detect when you reload a game, and maybe, we could use it to relaunch a background script.